<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card> 
            <!-- 搜索与添加区域-->
            <el-row :gutter="20">
                <el-col :span="10">
                    <el-input placeholder="请输入内容"
                    v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search"
                        @click="getUserList"></el-button>
                    </el-input>    
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini"
                        @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danner" icon="el-icon-delete" size="mini"
                        @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                        
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="1" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>       
        </el-card>

        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible"
        width="50%" @close="addDialogClosed">
        <!-- //内容主题区域 -->
            <el-form :model="addForm" :rules="addFormRules"
            ref="addFormRef" label-width="80px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                 <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                 <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                 <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>    
            <!-- //底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible"
        width="50%" @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
            <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
        </el-dialog>
    </div>    
</template>

<script>
export default {
    data() {
        //验证邮箱的规则
        var checkEmali=(rule,value,cb)=>{
            //验证邮箱的正则表达式
            let reg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if (reg.test(value)) {
            //合法的邮箱
            return cb()
            } else {
            cb(new Error('邮箱格式不正确'))
            }
        }
        var checkMobile=(rule,value,cb)=>{
            //验证手机的正则表达式
            let reg = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if (reg.test(value)) {
            //合法的手机号    
            return cb()
            } else {
            cb(new Error('手机格式不正确'))
            }
        }
        return{
            //获取用户列表的参数对象
            queryInfo: {
                query:'',
                pagenum:1,
                pagesize:2
            },
            userlist:[],
            total:0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //添加表单的验证规则对象
            addFormRules:{
                username:[
                    {required:true,
                    message:'请输入用户名',trigger:
                    'blur'},
                    {
                      min:3,max:10,
                      message:'用户名的长度在3~10个字符之间',
                      trigger:'blur'
                    }
                ],
                password:[
                    {required:true,
                    message:'请输入密码',trigger:
                    'blur'},
                    {
                      min:6,max:15,
                      message:'用户名的长度在6~15个字符之间',
                      trigger:'blur'
                    }
                ],
                email:[
                    {required:true,
                    message:'请输入邮箱',
                    trigger:'blur'},
                    {validator:checkEmali,trigger:'blur'}
                ],
                mobile:[
                    {required:true,
                    message:'请输入手机',trigger:
                    'blur'}, 
                    {validator:checkMobile,trigger:'blur'}
                ]    
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //修改表单的验证规则对象
            editFormRules:{
                email:[
                    {required:true,message:
                    '请输入用户邮箱',trigger:'blur'},
                    {validator:checkEmali,trigger:
                    'blur'}
                ],
                mobile:[
                    {required:true,message:
                    '请输入用户手机',trigger:'blur'},
                    {validator:checkMobile,trigger:
                    'blur'}
                ]
            }
        }
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList(){
            const {data:res}=await this.$http.get('users',{
                params:this.queryInfo
            })
            if(res.meta.status!==200){
                return this.$message.error('获取用户列表失败')
            }
            this.userlist=res.data.users
            this.total = res.data.total            
        },
        //监听 pagesize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize); 
            this.queryInfo.pagesize = newSize  
            this.getUserList()         
        },
        //监听页码值 改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        //监听switch开关状态的改变
        async userStateChanged(userinfo){
            console.log(userinfo);
            console.log(`users/${userinfo.id}/state/${userinfo.mg_state}`);
            
            const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`
            )
            if(res.meta.status !==200) {
                userinfo.mg_state=!userinfo.mg_state
                return this.$message.error('更新用户状态失败！')
            }
                this.$message.success('更新用户状态成功！')
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed () {
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser () {
            this.$refs.addFormRef.validate(async valid=>{
               if(!valid)return
            //可以发起添加用户的请求
            const {data:res} = await this.$http.post('users',this.addForm)
            
            if(res.meta.status !==201) {
                this.$message.error('添加用户失败！')
            }
            
            this.$message.success('添加用户成功！')
            //隐藏添加用户的对话框
            this.addDialogVisible = false
            //重新获取用户列表数据
            this.getUserList()
            })
        },
        //展示编辑用户的对话框
        async showEditDialog(id){
            const {data:res} = await this.$http.get('users/'+ id)

            if (res.meta.status!==200){
                return this.$message.error('查询用户信息失败！')

            }
            this.editForm=res.data
            this.editDialogVisible = true
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if(!valid) return  
                //发送修改用户信息的数据请求
                const {data:res} = await this.$http.put('users/'+this.editForm.id,
                {
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                
                if(res.meta.status !=200){
                    return this.$message.error('更新用户信息失败!')
                }

                //关闭对话框
                this.editDialogVisible = false
                //刷新数据列表
                this.getUserList()
                //提示修改成功
                this.$message.success('更新用户信息成功！')
            })
        },
        //根据ID删除对应的用户信息
        async removeUserById(id){
            //弹框询问用户是否删除数据
            const confirmResult = await this.$confirm(
                '此操作将永久删除该用户，是否继续?',
                '提示',
                {               
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'                
                }
            ).catch(err=>err)

            //如果用户确认删除，则返回值为字符串 confirm
            //如果用户取消了删除，则返回值为字符串 cancel
            if(confirmResult !=='confirm'){
              return this.$message.info('已取消删除')
            }

            const {data:res} = await this.$http.delete('users/'+id)
            
            if(res.meta.status !==200) {
                return this.$message.error('删除用户失败')
            }

            this.$message.success('删除用户成功')
            this.getUserList()
          
        }
    }
}
</script>

<style lang="less" scoped>

</style>